PHYSICS HIGH SCHOOL

The first thing to focus on when creating a workout plan isdetermining the frequency of the activity
choosing the intensity level
watching others complete the activity
selecting an activity you enjoy

Answers

Answer 1
Answer: I think the best answer is option one. The first thing to focus on when creating a workout plan is determining the frequency of the activity. It is important took look at how much time do you have to do things in order to manage your tasks daily and you can give enough time for each activity.
Answer 2
Answer: Key points you need remember while doing workout are:

1. Frequency
2. Intensity
3. Time
4. Type.

As you may expect, this refers to however typically you may exercise. Once any sort of exercise is performed your body completes a method of reconstruction and repairing. So, decisive the frequency of exercise is vital so as to search out a balance that has simply enough stress for the body to adapt and conjointly permits enough rest time for healing.
Therefore, the first thing to focus on when creating a workout plan is determining the frequency of the activity. It is important to take a look at how much time do you have to do things in order to manage your tasks daily and you can give enough time for each activity.

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Your friend won the race that you were both running. Instead of being gracious, your friend made fun of you for losing, and now you don't want to run anymore. What is this an example of?Positive peer pressure
Negative peer pressure
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Negative peer influence

Answers

negative peer influence

negative peer influence

Which of the following is not a natural source of light?a. The sun
b. Fluorescence
c. Phosphorescence
d. Oil lamps

Answers

So we want to know which is not natural source of light. Sun is the natural source of light. Flourescence, oil lamps and phosporescence are all mechanisms of creating light that are artificial and made by people. So the correct answer is b. c. and d.

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Where is the field of each charge the strongest ?(A. positive charge arrows pointed out)
(B.negative charge arrows pointed inward)

Answers

First we have to agree on what you mean by "strongest".

To me, "strongest" means the place where it exerts the greatest
force on another charge that happens to be passing by.

In both cases ... 'A' and 'B' ... that's going to be right smack on top
of the charge itself, or as close to it as you can get.

On drawings, it's the spot where the field 'lines' are closest together.

It makes no difference whether the original charges are positive or negative.

The mass of a stroller and the child it carries is 23.7 kg. A man pushes the stroller with a force of 142 N at an angle of 38.0° to the vertical. The stroller experiences a friction force of 24.0 N due to the brake accidentally being on. What is the stroller's acceleration forward?A. 5.99 m/s2
B. 3.90 m/s2
C. 2.68 m/s2
D. 4.98 m/s2

Answers

the horizontal resultant force applied is 142*Cos(38) which is 135.62N

24N of opposing force
therefore the total force acting on the stroller is 135.62-24=111.62N

applying the formula f=ma
where f is force
m= mass
a= acceleration
plugging the values we get the stroller's acceleration forward as 3.90 m/s^2

I need help on (a)
I don't know what equation to use?

Answers


Impulse = (force) x (length of time the force lasts)

I see where you doodled  (60)(40)  over on the side, and you'll be delighted
to know that you're on the right track !

Here's the mind-blower, which I'll bet you never thought of:
On a force-time graph, impulse (also change in momentum)
is just  the area that's added under the graph during some time !

From zero to 60, the impulse is just the area of that right triangle
under the graph.  The base of the triangle is  60 seconds.  The
height of the triangle is  40N .  The area of the triangle is not
the whole (base x height), but only 1/2 (base x height).

  1/2 (base x height) = 1/2 (60s x 40N) = 1,200 newton-seconds

That's the impulse during the first 60 seconds.  It's also the change in
the car's momentum during the first 60 seconds. 

Momentum = (mass) x (speed)

If the car wasn't moving at all when the graph began, then its momentum is  1,200 newton-sec after 60 seconds.  Through the convenience of the SI system of units, 1,200 newton-sec is exactly the same thing as 1,200 kg-m/s .  The car's mass is 3 kg, so after 60 sec, you can write

    Momentum = M x V = (3 kg) x (speed) = 1,200 kg-m/s

and the car's speed falls right out of that. 

From 60to 120 sec, the change in momentum is the added area of that
extra right triangle on top ... it's 60sec wide and only 20N high.  Calculate
its area, that's the additional impulse in the 2nd minute,  which is also the
increase in momentum, and that'll give you the change in speed.

Explain three differences between a science and a pseudoscience.

Answers

1) science does not accept personal story's as evidence, pseudoscience relies on these story's as evidence.
2) science argues from scientific knowledge, pseudoscience argues from ignorance 
3) science progresses, pseudoscience  does not progress
and 4) (just in case) science holds pier review, pseudoscience does not
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